Narrow ware shuttle



June 23, 1936. w SHEETS, 5 2,045,314

NARROW WARE SHUTTLE Filed July 16 1935 INVE R,

mum"; JTSZwts, BY

ATTORNEY.

Patented June 23, 1936 V UNITED STATES ATENT' caries NARROW WARE SHUTTLE William J. sheets; Sr., Bloomingdale, N. I. pplieanon'irmy 16, 1995, semi No. 31,545 2 Claims. (01. 139- 199) In narrow ware bow shuttles for looiris the bobbin-carrying spindle isusually seated at one end a socket at theifiside'of one leg of the bow and has its other end bent mendsprung into a groove at the inside of the other leg 6f the bow, then existing under some longitudinal pressure. In the action of the shuttle, and particularly if it is one of several banks and so undergoes more or less violent vertical displacement and consequent jarring, the spindle is likely to and frequently does become dismounted and so causes a perhaps costly smash.

I aim by this invention to provide, in a quite simple and inexpensive way, for the secure mounting of the spindle in the shuttle bow and to make it possible readily and without the exercise of special skill to repair the spindle mounting whenever such may be necessary.

In the drawing,--

Fig. 1 is a top plan View of the improved shuttle;

Fig. 2 is a section on line 2-2 and Fig. 3 a section on line 3--3, Fig. 1;

Fig. 4 is a View similar to Fig. 2, but showing a modification; and

Fig. 5 is a perspective view of the spindle.

The shuttle body I having the opposite guiding grooves 2, the rack 3 and the bow 4 provided with the usual thread outlet 5 and tension devices 6; and the clip I secured in notches 8 of the body at the bases of the legs of its bow and having one end portion la forming a brake lever to bear on the windings on the bobbin 9 and thus frictionally resist rotation of the wound mass and its other end portion lb serving as a spring to hold end portion la against the windings are or may be all as usual.

The socket to receive one end of the spindle is formed by an indentation in an insert l0 snugly fitted in a cavity formed at the inside of one leg of the'bow.

A groove l l is formed at the inside of the other leg of the bow to receive the other end of the spindle. This groove enters from one of the top and bottom sides of the bow, here and preferably from what is its top side, such end of the groove forming its mouth; the groove is a blind groove in the sense that its other end is closed, such other end here forming a seat Ila for the spindle end.

At least when the spindle end is engaged in the groove the latter presents a restriction (as from the point l2 to the mouth of the groove) opposing free movement of the. said spindle end toward the mouth of the groove and the material at one side of the groove in the Z'oii of restriction is compressible and resilient, as" at 135 that is, whereas by compressible I mean we pressionable or'iiideiitab'le or adapted to yield locally to locally applied pressure the shuttle Eddy is mainly formed of hard wood,- as iiiaiile; the portion l3 thereof is terrace of same waitresses resilient material, such as leather; a recess having been cut in the wood to form one side of the groove a block of such material, as at I3, is glued in such recess to form the opposite side of the groove and produce the said restriction. In the example the restriction is such that the spindle end is actually held against its seat Ila by the said resilient compressible material, as the block.

The groove may extend straight in from the said side of the bow, as shown in Fig. 4; but I prefer to deflect its inner end portion, as shown at I lb in Fig. 2, so that such end portion will stand substantially horizontally when the shuttle is in use, in which case the jars incident to vertical movement of the shuttle will not act to displace the spindle end in a direction toward the mouth of the groove but rather crosswise thereof. The spindle I4 is here a pin formed straight from end to end, one end being tapered and engaged in the indentation of the insert at H) and the other end having a cylindrical head Ma.

engaged in the groove and of such diameter as not U to pass the restriction except by causing compression of the material at [3. To remove the spindle from or return it to position in the shuttle body requires sufficient force to crowd its head past the restriction, with consequent yielding of the material at l3.

Various expedients other than the one first herein referred to have been proposed for holding in place in the bow of a shuttle of the class in question one end of a spindle whose other end is engaged in some form of socket. But they all require special skill in forming and positioning them in the shuttle, if they are in fact reliable, and when they become ineffective to insure holding of the pin in position they do not permit repair to be effected except by the exercise of special skill. By my invention, having formed the mentioned recess in the wood of the bow it is only necessary to cut a block of the resilient compressible material to the proper form and cement it in place; if and when the block becomes no longer safely usable it may be readily removed 7 head at one end is to insure the spindle against falling through the bobbin when, having passed the spindle through the bobbin bore, the spindleand-bobbin assembly is to be withdrawn from or replaced in position in the shuttle body, the head bing of greater diameter than such bore and the operator keeping the head-end of the spindle elevated during this operation.

In the form shown by Figs. 1 and 2 the spindle head is held against the seat Ila by the elastic device I and in a part of the groove H which is horizontal when the shuttle is in action and hence perpendicular to the up and down displacementtendency active on the loaded spindle as the result of the rise and fall of the shuttle. Hence, even without the mentioned restriction the maintaining of the spindle head in the groove at all times is assured: in the only direction in which the spindle head can be removed from the groove no force comes into play in the normal action of the shuttle which is sufficient to overcome the resistance of the means I, yieldingly opposing such removal. This being new so far as I am aware, I claim accordingly.

Having thus fully described my invention what I claim is: g V

1. The combination,, with a shuttle body having a bow and a block of resilient impressionable material secured to the inside of one leg of the bow, said leg having a portion thereof forming with said block a groove which at one end is open and at the other end is closed and which at one side has near and facing said other end a shoulder, of a spindle removably supported at one end thereof in the other leg of the bow and having its other end in the groove between said shoulder and the closed end of the groove, said shoulder and the opposite side of the groove opposing the free escape of said other end of the spindle toward the open end of the groove.

2. The'combination, with a shuttle body having a bow and a block of resilient impressionable material secured to the inside of one leg of the bow, said leg having a portion thereof forming with said block a groove which at one end is open and at the other end is closed and which comprises two angularly related extremities, that groove-extremity which includes the closed end of the groove extending horizontally, of a spindle rcmovably supported at one endthereofin the other leg of the bow and having its other end clamped between the sides K of said groove-extremity.

' WILLIAM J. SHEETS, SR. 

